According to the datasheet it's a "SMPS-Mosfet" for DC-DC converters.
Seems that it is fully designed/optimized for switching.
Also, the 6nF inputcapacitance is not easy to drive.
Maybe it's good for a multiple kilowatts ClassD ?

Hi ZOX ,
Being a N-channel mosfet amp manufacturer, I think now its my turn to say something!.

yes its a smps mosfet, but you can very well use this in Quasi-complementary amp. You have to design a good driver stage to drive this mosfet. the driver idle current must be at least 40-60mA in order to drive this huge gate capacitance along with good damping factor.
You can draw upto 300WRMS @ 4 ohms just from a single pair very easily.

I think you posted in a similar fashion to this a couple of days ago with another MOSFET. You would be better providing a link to the PDF datasheet as it is not enough to know just the voltage and current rating of the device. The wattage can be ignored for practical purposes in linear (class-b amp) use.

As I said last time, we need to see the safe operating area (SOA) graph. The input capacitance (Ciss) and gate charge (Qg) are also important parameters.

...is too high for normal aluminum/air cooling. You'd need something very high end to cool these properly. Perhaps water cooling, probably with a copper block and high flow rate, maybe even refrigerated. In any case, not for the uninitiated...